Sketch the graph of the given polynomial function,and show work

Algebra
Tutor: None Selected Time limit: 1 Day

f(x) = -x^3 + 9x + 3       x values: -3,-2,-1,0,1,2,3

Oct 25th, 2015

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The answer : 

we have :  f(x) = -x^3 + 9x + 3

so : at the point  

x = - 3 ;  f(-3) = 3  so  (-3,3)

x = - 2 ;  f(-2) = -7  so  (-2,-7)

x = - 1 ;  f(-1) = 13  so  (-1,13)

x =   0 ;  f(0) = 3  so  (0,3)

x =  1 ;  f(1) = 11  so  (1,11)

x =  2 ;  f(2) = 13  so  (2,13)

x =  3 ;  f(3) = 3  so  (3,3)

so we have to put this point on one landmark then draw the line : 

graph of a polynom.JPG 


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Oct 25th, 2015

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